Disadvantages of Oil Paint:

Answer 1

Thinned with solvent and/or oils, so need to work in a well-ventilated area. Slow-drying, so consider working on several paintings at once. Using an alkyd medium will speed up drying. Have to wait several months to ensure a painting is dry before it can be varnished. Brushes usually cleaned with solvent, though you can use oil or dishwashing liquid.